Confined compression tests : Outlining the failure envelope of columnar sea ice

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DOIResolve DOI: http://doi.org/10.1016/0165-232X(86)90016-9
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TypeArticle
Journal titleCold Regions Science and Technology
Volume12
Issue1
Pages1328; # of pages: 16
AbstractA series of confined compression tests has been performed on columnar sea ice over a range of nominal strain rates of 10⁻⁵ to 10⁻³ s⁻¹ at a temperature of -2°C. Both the applied load and side confining load were measured. These are used to outline the full 3-dimensional failure envelope of the ice. The results are discussed in terms of loading rate effects, temperature, brine volume and air porosity. A strength index is introduced which correlates the present results in terms of these parameters. This leads to an empirical relationship which gives the functional dependence of the uni-axial compressive strength in terms of strain rate, loading direction, salinity, temperature and ice density. A mathematical description of the failure envelope is presented using a modified n-type yield function.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NPARC number12338981
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Record identifier252ef7d0-9454-487c-9c08-29d2e994822b
Record created2009-09-11
Record modified2016-05-09
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